1.
Effect Of Feeding Organic And Inorganic Selenium With And Without Combination Of Vitamin E On The Immune System Of Broiler Chickens
by Imran Hussain, M | Dr. Shakil Akhtar Khan | Dr.Kamran | Dr.Zafar Iqbal Chaudhry | Faculty of Veterinary Sciences.
Material type: ; Format:
print
; Literary form:
not fiction
Publisher: 2003Dissertation note: The present project was designed to investigate the effect of organic and inorganic selenium with and without combination of vitamin E on the immune system of broiler chickens. For this purpose 130 (one day old) broiler chicks were taken and divided into three different groups i.e. A, B and C. Group A and B consisted of 60 chicks each while group C consisted of 10 chicks. Group A was further sub divided into six sub groups Al, A2, A3, A4, A5 and A6 which were fed on organic selenium at the dose rate of 0.25, 0.25, 0.5, 0.5, 1.0 and 1.0 mg/kg and vitamin E at the dose rate of 0, 200, 0, 200, 0 and 200 lU/kg respectively. Group B was further sub divided into six sub groups Bi, B2, B3, B4, B5 and B6, which were fed on inorganic selenium at the dose rate of 0.25, 0.25, 0.5, 0.5, 1.0 and 1.0 mg/kg and vitamin E at the dose rate of 0, 200, 0, 200, 0 and 200 lU/kg respectiyely. Group C received no selenium and vitamin E and served as control group.
Immunomodulatory effects of selenium and vitamin E were evaluated by measuring haemagglutination inhibition antibody titre against Newcastle Disease Virus (NDV). Pathological examination of lymphoid organs, lymphoid organs weight/body weight ratio, growth traits and economy were also studied. Highest immune response was observed in sub groups A6 and B6 as compared to control group that had the lowest immune response. There was no effect of organic and inorganic selenium with and without combination of vitamin E on the pathology of bursa of Fabricius, spleen and thymus as compared to control group. Lymphoid organs weight/body weight ratio was also highest in sub groups A6 and B6 while lowest in control group. Body weight gain was highest in sub groups A6 and B6 as compared to control group. Feed Conversion Ratio (FCR) was also best in sub groups A6 and B6 as compared to control group.
To summarize, the immunomodulatory effects of supplementation of organic selenium with and without combination of vitamin E were better than supplementation of inorganic selenium with and without combination of vitamin E. Moreover, the effects of organic or inorganic selenium with combination of vitamin E were better than the supplementation of organic or inorganic selenium without combination of vitamin E. It can be concluded that feeding of organic/inorganic selenium with and without combination of vitamin E is not only beneficial for health status of birds but also economical and cost effective for the farmers.
Availability: Items available for loan: UVAS Library [Call number: 0817,T] (1).
2.
Effects Of Excessive Sodijm Salts In Feed Of Broiler Birds
by Farrukh Ali Khan | Dr. Shakil Akhtar Khan | Dr.Muhammad | Dr.Zafar Iqbal Chaudhry | Faculty of Veterinary Sciences.
Material type: ; Format:
print
Publisher: 2003Dissertation note: This study was conducted on broiler birds for 6 weeks to investigate the effect of excessive sodium salt i.e. sodium chloride and sodium bicarbonate on immune status of birds, against NDV by haemagglutination inhibition test. Presence of edematous lesion on postmortem examination, estimation of serum sodium concentrations by spectrophotoinetry and calculation of FCR and weight gain was also performed. A total of 100 (one day old) broiler chicks were purchased and were divided in 4 groups A, B, C and D. The birds of group A were fed on 0.36% NaCI in feed, group B was fed on 0.36% NaHCO3 in feed and the birds of group C were fed on feed having 0.18% NaC1 and 0.18% NaHCO3. The group D was control group fed on routine feed having 0.18% total sodium salts. They were maintained under similar hygienic managemental conditions and were provided feed and water ad libitum
The results showed that the birds of group A had better feed conversion ratio as compared to the birds of group B, C and D. Whereas birds of group D had poor FCR as compared to the birds of group A, B and C. The results showed that birds of group A had better weight gain as compared to the birds of group B, C and D. Whereas birds of group D had poor weight gaul as compared to the birds of group A, B and C. On analysis of serum sodium concentration, the birds of group A had maximum sodium concentration and birds of group D had lowest serum sodium concentration. Statistical analysis showed a significant difference in the serum sodium levels of all groups except within group B and C. The highest GMHI titer against ND virus was observed in sera of birds of group D and the lowest ill the sera of birds from group A. No edematous lesions were observed in birds of any group.
Availability: Items available for loan: UVAS Library [Call number: 0839,T] (1).
